clipped from: www.cnn.com ERIE, Pennsylvania (AP) -- About 50 vehicles -- including an ambulance carrying patients -- piled up in a chain-reaction crash on a snowy interstate Thursday, killing one person, officials said.
A 10-mile stretch of Interstate 90 near Lake Erie was closed for hours in both directions after the early-afternoon accident. Several people were slightly injured, authorities said.
Among the vehicles involved were several tractor-trailers and tank trucks. (Watch aftermath of crash in heavy snow 
)
Authorities were not releasing information on the death. It was unclear whether anyone in the ambulance was injured.